004 Structural

8/10/2019 004 Structural

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4-1

STRUCTURAL

SHAPES

ANGLES

Bar Size ASTM A-36 ...............................................................4-2

Structural, ASTM A-36 ............................................................4-3

CHANNELS

Bar Size, ASTM A-36 ..............................................................4-4

Ship and Car, ASTM A-36 .......................................................4-4

Structural ASTM A-36 Modifed...............................................4-5

Structural ASTM A-36 .............................................................4-5 Stair Stringer (Junior) Channels ASTM A-36 ..........................4-6

BEAMS

Standard I Beam, ASTM A-992/A572-50 ................................4-6

Junior Beams, ASTM A529-50 ................................................4-7

Wide Flange and H Beams, ASTM A992/A572-50 . 4-7thru 4-12

TEES

Bar Size ................................................................................4-13

FIBERGLASS

Structural Shapes .................................................................4-14

TOLERANCES............................................................ 4-15thru 4-17


2/18

4-2

alro.com

Weight Leg Leg Thickness (per ft.)

1/2 1/2 1/8 .38

5/8 5/8 1/8 .48

3/4 3/4 1/8 .59

7/8 7/8 1/8 .70

1 5/8 1/8 .64

1 3/4 1/8 .70

1 1 1/8 .80

3/16 1.16

1/4 1.49

1-1/8 1-1/8 1/8 .90

1-1/4 1-1/4 1/8 1.01

3/16 1.48

1/4 1.92

1-1/2 1-1/2 1/8 1.23

3/16 1.80

1/4 2.34

3/8 3.35 1-3/4 1-1/4 1/8 1.23

3/16 1.80

1-3/4 1-3/4 1/8 1.44

3/16 2.12

1/4 2.77

ANGLES - BAR SIZEASTM A-36, PICKLED & OILED and GALVANIZED

TENSILE STRENGTH: 58,000/80,000 PSI

YIELD POINT: 36,000 PSI Min.

Weight Leg Leg Thickness (per ft.)

2 1-1/4 3/16 1.96

1/4 2.55

2 1-1/2 1/8 1.44

3/16 2.12

1/4 2.77

2 2 1/8 1.65

3/16 2.44

1/4 3.19

5/16 3.92

3/8 4.70

2-1/2 1-1/2 3/16 2.44

1/4 3.16

5/16 3.92

2-1/2 2 3/16 2.75

1/4 3.62

5/16 4.50

3/8 5.30

2-1/2 2-1/2 3/16 3.071/4 4.10

5/16 5.00

3/8 5.90

1/2 7.70

Holes are cut to the desired diameter eliminating the

need for drilling or punching. Tapping also available.

Notches can be cut to the desired angle for precision

forming. Laser cuts are smooth, practically eliminating

the need for grinding and deburring.

Parts produced with

Alros one step laser

technology.

Laser cutting slots and

tabs eliminate the need

for clumsy clamping. After laser cutting, most parts

are ready for assembly.

Your parts can be produced from

any structural shape including

angle iron and beams.

Visit the Alro Web Site to learn more about

The New Way to Make Parts!Visit alro.com

Click on Metals then click Literature

Scroll down to the Tube Laser Flyer


3/18

4-3

alro.com

5 3-1/2 1/4 7.0

5/16 8.7

3/8 10.4

1/2 13.6

5/8 16.8

3/4 19.8

5 5 5/16 10.33/8 12.3

1/2 16.2

5/8 20.0

3/4 23.6

6 3-1/2 5/16 9.8

3/8 11.7

1/2 15.3

6 4 5/16 10.3

3/8 12.3

1/2 16.2

5/8 20.0

3/4 23.6

6 6 5/16 12.4

3/8 14.9

1/2 19.6

5/8 24.2

3/4 28.7

1 37.4

7 4 3/8 13.6

1/2 17.9

3/4 26.2

8 4 1/2 19.6

3/4 28.7

1 37.4

8 6 1/2 23.0

3/4 33.8

1 44.2

8 8 1/2 26.4

5/8 32.73/4 38.9

1 51.0

10 10 3/4 49.10

1 64.70

1-1/4 79.90

Dimensions

Weight

Leg Leg Thickness (per ft.)

ANGLES - STRUCTURALASTM A-36, PICKLED & OILED and GALVANIZED



Dimensions

Weight

Leg Leg Thickness (per ft.)

3 2 3/16 3.07

1/4 4.1

5/16 5.0

3/8 5.9

1/2 7.7

3 2-1/2 1/4 4.5

5/16 5.6

3/8 6.6

1/2 8.5

3 3 3/16 3.71

1/4 4.9

5/16 6.1

3/8 7.2

1/2 9.4

3-1/2 2-1/2 1/4 4.9

5/16 6.1

3/8 7.2

1/2 9.4

3-1/2 3 1/4 5.4

5/16 6.6

3/8 7.9

1/2 10.2

3-1/2 3-1/2 1/4 5.8

5/16 7.2

3/8 8.5

4 3 1/4 5.85/16 7.2

3/8 8.5

1/2 11.1

4 3-1/2 1/4 6.2

5/16 7.7

3/8 9.1

1/2 11.9

4 4 1/4 6.6

5/16 8.2

3/8 9.81/2 12.8

5/8 15.7

3/4 18.5

5 3 1/4 6.6

5/16 8.2

3/8 9.8

1/2 12.8


4/18

4-4

2 1/2 1/8 1.43

2 9/16 3/16 1.86

2 5/8 1/4 2.28

2 1 1/8 1.59

2 1 3/16 2.32

2-1/2 5/8 3/16 2.27

CHANNELS - BAR SIZEASTM A-36



3/4 3/8 1/8 .56

1 3/8 1/8 .68

1 1/2 1/8 .84

1-1/4 1/2 1/8 1.01

1-1/2 1/2 1/8 1.12

1-1/2 9/16 3/16 1.44

1-1/2 3/4 1/8 1.17

ADepth

BFlange

C WebThickness

Weight(per ft.)

ADepth

BFlange

C WebThickness

Weight(per ft.)

12" 31.0 .370 3.670

35.0 .465 3.765

40.0 .590 3.890

45.0 .710 4.010

50.0 .835 4.135

13" 31.8 .375 4.000

35.0 .447 4.072

40.0 .560 4.185

50.0 .787 4.412 18" 42.7 .450 3.950

45.8 .500 4.000

51.9 .600 4.100

58.0 .700 4.200

3" 7.1 .312 1.938

4" 13.8 .500 2.500

6" 12.0 .310 2.497

15.1 .316 2.941

15.3 .340 3.500

16.3 .375 3.000

18.0 .379 3.504

7" 19.1 .352 3.452

22.7 .503 3.603

8" 18.7 .353 2.978

20.0 .400 3.025

21.4 .375 3.450

22.8 .427 3.502

9" 23.9 .400 3.450

25.4 .450 3.500

10" 22.0 .290 3.315

25.0 .380 3.405

28.5 .425 3.95033.6 .575 4.100

41.1 .796 4.321

CHANNELS - SHIP AND CARASTM A-36



B

Width of

Flange

C

Thickness

of WebWgt.

(per ft.)

A

Depth

B

Width of

Flange

C

Thicknessof WebWgt.(per ft.)A

Depth

Visit the Alro Web Site

www.alro.comalro.com alro.com


5/18

4-5

A Weight C B

Depth (per ft.) Thickness of Web Width of Flange3" 3.5 .132 1.375

4" 4.5 .125 1.584

CHANNELS - STRUCTURAL A-36ASTM A-36 MODIFIED


A Weight C B

Depth (per ft.) Thickness of Web Width of Flange

3" 4.1 .170 1.410

5.0 .258 1.498

6.0 .356 1.596

4" 5.4 .184 1.584

6.25 .247 1.647

7.25 .320 1.720

5" 6.7 .190 1.750

9.0 .325 1.885

6" 8.2 .200 1.920

10.5 .314 2.034

13.0 .437 2.157

7" 9.8 .210 2.090

12.25 .314 2.194

14.75 .419 2.299

8" 11.5 .220 2.260

13.75 .303 2.343

18.75 .487 2.527

9" 13.4 .233 2.433

15.0 .285 2.485

20.0 .448 2.648

10" 15.3 .240 2.600

20.0 .379 2.739

25.0 .526 2.886

30.0 .673 3.033

12" 20.7 .282 2.942

25.0 .387 3.047

30.0 .510 3.170

15" 33.9 .400 3.400

40.0 .520 3.520

50.0 .716 3.716

CHANNELS - STRUCTURALASTM A-36






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4-6

AMERICAN STANDARD I BEAMASTM A-992/A572-50 (Grade 50)

TENSILE STRENGTH: 65,000 PSI Min

YIELD POINT: 65,000 PSI Max

A Weight C B


3" 5.7* .170 2.330 7.5 .349 2.509

4" 7.7* .193 2.663 9.5 .326 2.796

5" 10.0 .214 3.004

6" 12.5 .232 3.33217.25 .465 3.565

8" 18.4 .271 4.00123.0 .441 4.171

10" 25.4 .311 4.661 35.0 .594 4.944

12" 31.8 .350 5.000

35.0 .428 5.078 40.8 .462 5.252 50.0 .687 5.477

15" 42.9 .411 5.501 50.0 .550 5.640

18" 54.7 .461 6.001 70.0 .711 6.251

20" 66.0 .505 6.255 75.0 .635 6.385 86.0 .660 7.060

96.0 .800 7.200 24" 80.0 .500 7.000 90.0 .625 7.125 100.0 .745 7.245 106.0 .620 7.870 121.0 .800 8.050

*Also available in 1045 HR

CHANNELS - STAIR STRINGER(JUNIOR)ASTM A-36



A Weight C B


8" 8.5 .179 1.874

10" 6.5 .152 1.170

10" 8.4 .170 1.500

12" 10.6 .190 1.500

12" 14.3 .250 2.130


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4-7

JUNIOR BEAMSASTM A-529-50 (Grade 50)

TENSILE STRENGTH: 70,000-100,000 PSI

YIELD POINT: 50,000 PSI Min

W 4 x 13.0 4.16 .345 4.060 .280

W 5 x 16.0 5.01 .360 5.000 .24019.0 5.15 .430 5.030 .270

W 6 x 9.0 5.90 .215 3.940 .17012.0 6.03 .280 4.000 .23016.0 6.28 .405 4.030 .26015.0 5.99 .260 5.990 .23020.0 6.20 .365 6.020 .26025.0 6.38 .455 6.080 .320

W 8 x 10.0 7.89 .205 3.940 .17013.0 7.99 .255 4.000 .23015.0 8.11 .315 4.015 .24518.0 8.14 .330 5.250 .23021.0 8.28 .400 5.270 .25024.0 7.93 .400 6.495 .24528.0 8.06 .465 6.535 .28531.0 8.00 .435 7.995 .28535.0 8.12 .495 8.020 .31040.0 8.25 .560 8.070 .36048.0 8.50 .685 8.110 .40058.0 8.75 .810 8.220 .51067.0 9.00 .935 8.280 .570

W 10 x 12.0 9.87 .210 3.960 .190

15.0 9.99 .270 4.000 .23017.0 10.11 .330 4.010 .24019.0 10.24 .395 4.020 .25022.0 10.17 .240 5.750 .36026.0 10.33 .440 5.770 .26030.0 10.47 .510 5.810 .30033.0 9.73 .435 7.960 .29039.0 9.92 .530 7.985 .31545.0 10.10 .620 8.020 .35049.0 9.98 .560 10.000 .340

WIDE FLANGE AND H BEAMSASTM A992/A572 (GRADE 50)

TENSILE STRENGTH: 65,000 MIN. PSI

YIELD POINT: 50,000 MIN. - 65,000 MAX. PSI

Nominal

DepthWeight

(per ft)

A

Depth of

Section

D

Flange

Thickness

B

Width of

Flange

C

Thickness

of Web

A Weight C B Depth (per ft.) Thickness of Web Width of Flange

6" 4.4 .114 1.844

8" 6.5 .135 2.281

10" 8.0 .141 2.690

10" 9.0 .157 2.690

12" 10.8 .160 3.065

12" 11.8 .177 3.065


8/18

4-8

WIDE FLANGE AND H BEAMSASTM A992/A572 GRADE 50



Nominal

DepthWeight

(per ft)

A

Depth of

Section

D

Flange

Thickness

B

Width of

Flange

C

Thickness

of Web

Continued on next page

W 10 x 54.0 10.09 .615 10.030 .37060.0 10.22 .680 10.080 .42068.0 10.40 .770 10.130 .47077.0 10.60 .870 10.190 .53088.0 10.84 .990 10.265 .605

100.0 11.10 1.120 10.340 .680

112.0 11.36 1.250 10.415 .755 W 12 x 14.0 11.91 .225 3.970 .200

16.0 11.99 .265 3.990 .22019.0 12.16 .350 4.005 .23522.0 12.31 .425 4.030 .26026.0 12.22 .380 6.490 .23030.0 12.34 .440 6.520 .26035.0 12.50 .520 6.560 .30040.0 11.94 .515 8.005 .29545.0 12.06 .575 8.045 .335

50.0 12.19 .640 8.080 .370

53.0 12.06 .575 9.995 .34558.0 12.19 .640 10.010 .360

65.0 12.12 .605 12.000 .390

72.0 12.25 .670 12.040 .430

79.0 12.38 .735 12.080 .470

87.0 12.53 .810 12.125 .515

96.0 12.71 .900 12.160 .550106.0 12.89 .990 12.220 .610120.0 13.12 1.105 12.320 .710136.0 13.41 1.250 12.400 .790152.0 13.71 1.400 12.480 .870

170.0 14.03 1.560 12.570 .960190.0 14.38 1.735 12.670 1.060210.0 14.71 1.900 12.790 1.180230.0 15.05 2.070 12.895 1.285252.0 15.41 2.250 13.005 1.395279.0 15.85 2.470 13.140 1.530305.0 16.32 2.705 13.235 1.625336.0 16.82 2.955 13.385 1.775

W 14 x 22.0 13.74 .335 5.000 .23026.0 13.91 .420 5.025 .25530.0 13.84 .385 6.730 .270

34.0 13.98 .455 6.745 .28538.0 14.10 .515 6.770 .31043.0 13.66 .530 7.995 .30548.0 13.79 .595 8.030 .34053.0 13.92 .660 8.060 .37061.0 13.89 .645 9.995 .37568.0 14.04 .720 10.035 .41574.0 14.17 .785 10.070 .45082.0 14.31 .855 10.130 .510


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4-9




Nominal

Depth

Weight

(per ft)

A

Depth of

Section

D

Flange

Thickness

B

Width of

Flange

C

Thickness

of Web


W 14 x 90.0 14.02 .710 14.520 .44099.0 14.16 .780 14.565 .485

109.0 14.32 .860 14.605 .525120.0 14.48 .940 14.670 .590132.0 14.66 1.030 14.725 .645145.0 14.78 1.090 15.500 .680

159.0 14.98 1.190 15.565 .745176.0 15.22 1.310 15.650 .830193.0 15.48 1.440 15.710 .890211.0 15.72 1.560 15.800 .980233.0 16.04 1.720 15.890 1.070257.0 16.38 1.890 15.995 1.175283.0 16.74 2.070 16.110 1.290311.0 17.12 2.260 16.230 1.410342.0 17.54 2.470 16.360 1.540370.0 17.92 2.660 16.475 1.655398.0 18.29 2.845 16.590 1.770426.0 18.67 3.035 16.695 1.875455.0 19.02 3.210 16.835 2.015500.0 19.60 3.500 17.010 2.190550.0 20.24 3.820 17.200 2.380605.0 20.92 4.160 17.415 2.595665.0 21.64 4.520 17.650 2.830730.0 22.42 4.910 17.890 3.070

W 16 x 26.0 15.69 .345 5.500 .25031.0 15.88 .440 5.525 .275

36.0 15.86 .430 6.985 .295

40.0 16.01 .505 6.995 .305

45.0 16.13 .565 7.035 .34550.0 16.26 .630 7.070 .380

57.0 16.43 .715 7.120 .430

67.0 16.33 .665 10.235 .395

77.0 16.52 .760 10.295 .455

89.0 16.75 .875 10.365 .525

100.0 16.97 .985 10.425 .585

W 18 x 35.0 17.70 .425 6.000 .300

40.0 17.90 .525 6.015 .315

46.0 18.06 .605 6.060 .360

50.0 17.99 .570 7.495 .35555.0 18.11 .630 7.530 .390

60.0 18.24 .695 7.555 .415

65.0 18.35 .750 7.590 .450

71.0 18.47 .810 7.635 .495

76.0 18.21 .680 11.035 .425

86.0 18.39 .770 11.090 .480

97.0 18.59 .870 11.145 .535


10/18

4-10




Nominal

DepthWeight

(per ft)

A

Depth of

Section

D

Flange

Thickness

B

Width of

Flange

C

Thickness

of Web

W 18 x 106.0 18.73 .940 11.200 .590

119.0 18.97 1.060 11.265 .655

130.0 19.25 1.200 11.160 .670

143.0 19.49 1.320 11.220 .730

158.0 19.72 1.440 11.300 .810

175.0 20.04 1.590 11.375 .890

192.0 20.35 1.750 11.455 .960211.0 20.67 1.910 11.555 1.060

234.0 21.06 2.110 11.650 1.160

258.0 21.46 2.300 11.770 1.280

283.0 21.85 2.500 11.890 1.400

311.0 22.32 2.740 12.005 1.520

W 21 x 44.0 20.66 .450 6.500 .350

48.0 20.62 .430 8.140 .350

50.0 20.83 .535 6.530 .380

55.0 20.80 .522 8.220 .375

57.0 21.06 .650 6.555 .40562.0 20.99 .615 8.240 .400

68.0 21.13 .685 8.270 .430

73.0 21.24 .740 8.295 .455

83.0 21.43 .835 8.355 .515

93.0 21.62 .930 8.420 .580

101.0 21.36 .800 12.290 .500

111.0 21.51 .875 12.340 .550

122.0 21.68 .960 12.390 .600

132.0 21.83 1.035 12.440 .650

147.0 22.06 1.150 12.510 .720166.0 22.48 1.360 12.420 .750

182.0 22.72 1.480 12.500 .830

201.0 23.03 1.630 12.575 .910

W 24 x 55.0 23.57 .505 7.005 .395

62.0 23.74 .590 7.040 .430

68.0 23.73 .585 8.965 .415

76.0 23.92 .680 8.990 .440

84.0 24.10 .770 9.020 .470

94.0 24.31 .875 9.065 .515

103.0 24.53 .980 9.000 .550104.0 24.06 .750 12.750 .500

117.0 24.26 .850 12.800 .550

131.0 24.48 .960 12.855 .605

146.0 24.74 1.090 12.900 .650162.0 25.00 1.220 12.955 .705176.0 25.24 1.340 12.890 .750192.0 25.47 1.460 12.950 .810207.0 25.71 1.570 13.010 .870229.0 26.02 1.730 13.110 .960



11/18

4-11




Nominal

DepthWeight

(per ft)

A

Depth of

Section

D

Flange

Thickness

B

Width of

Flange

C

Thickness

of Web

W 24 x 250.0 26.34 1.890 13.185 1.040279.0 26.73 2.090 13.305 1.160306.0 27.13 2.280 13.405 1.260335.0 27.52 2.480 13.520 1.380370.0 27.99 2.720 13.660 1.520

W 27 x 84.0 26.71 .640 9.960 .460

94.0 26.92 .745 9.990 .490102.0 27.09 .830 10.015 .515114.0 27.29 .930 10.070 .570129.0 27.63 1.100 10.010 .610146.0 27.38 .975 13.965 .605161.0 27.59 1.080 14.020 .660178.0 27.81 1.190 14.085 .725194.0 28.11 1.340 14.035 .750217.0 28.43 1.500 14.115 .830235.0 28.66 1.610 14.190 .910258.0 28.98 1.770 14.270 .980

281.0 29.29 1.930 14.350 1.060307.0 29.61 2.090 14.445 1.160336.0 30.00 2.280 14.550 1.260368.0 30.39 2.480 14.665 1.380

W 30 x 90.0 29.53 .610 10.400 .47099.0 29.65 .670 10.450 .520

108.0 29.83 .760 10.475 .545116.0 30.01 .850 10.495 .565124.0 30.17 .930 10.515 .585132.0 30.31 1.000 10.545 .615148.0 30.67 1.180 10.480 .650

173.0 30.44 1.065 14.985 .655191.0 30.68 1.185 15.040 .710211.0 30.94 1.315 15.105 .775235.0 31.30 1.500 15.055 .830261.0 31.61 1.650 15.155 .930292.0 32.01 1.850 15.255 1.020326.0 32.40 2.050 15.370 1.140357.0 32.80 2.240 15.470 1.240391.0 33.19 2.440 15.590 1.360

W 33 x 118.0 32.86 .740 11.480 .550130.0 33.09 .855 11.510 .580

141.0 33.30 .960 11.535 .605152.0 33.49 1.055 11.565 .635169.0 33.82 1.220 11.500 .670201.0 33.68 1.150 15.745 .715221.0 33.93 1.275 15.805 .775241.0 34.18 1.400 15.860 .830263.0 34.53 1.570 15.805 .870291.0 34.84 1.730 15.905 .960318.0 35.16 1.890 15.985 1.040354.0 35.55 2.090 16.100 1.160387.0 35.95 2.280 16.200 1.260



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4-12

W 36 x 135.0 35.55 .790 11.950 .600150.0 35.85 .940 11.975 .625160.0 36.01 1.020 12.000 .650170.0 36.17 1.100 12.030 .680182.0 36.33 1.180 12.075 .725194.0 36.49 1.260 12.115 .765210.0 36.69 1.360 12.180 .830231.0 36.49 1.260 16.470 .760232.0 37.12 1.570 12.120 .870247.0 36.67 1.350 16.510 .800256.0 37.43 1.730 12.215 .960262.0 36.85 1.440 16.550 .840282.0 37.11 1.570 16.595 .885302.0 37.33 1.680 16.655 .945330.0 37.67 1.850 16.630 1.020361.0 37.99 2.010 16.730 1.120395.0 38.41 2.200 16.830 1.220441.0 38.85 2.440 16.965 1.360

W 40 x 149.0 38.20 .830 11.810 .630167.0 38.59 1.025 11.810 .650183.0 38.98 1.200 11.810 .650211.0 39.37 1.415 11.810 .750235.0 39.69 1.575 11.890 .830264.0 40.00 1.730 11.930 .960278.0 40.16 1.810 11.970 1.025294.0 40.39 1.930 12.010 1.060327.0 40.79 2.130 12.130 1.180199.0 38.67 1.065 15.750 .650215.0 38.98 1.220 15.750 .650

249.0 39.38 1.420 15.750 .750277.0 39.69 1.575 15.830 .830297.0 39.84 1.650 15.825 .930324.0 40.16 1.810 15.910 1.000362.0 40.55 2.010 16.020 1.120372.0 40.63 2.045 16.065 1.160397.0 40.95 2.200 16.120 1.220431.0 41.26 2.360 16.220 1.340

W 44 x 230.0 42.91 1.220 15.750 .710262.0 43.31 1.415 15.750 .785290.0 43.62 1.575 15.825 .865

335.0 44.02 1.770 15.945 1.025




Nominal

DepthWeight

(per ft)

A

Depth of

Section

D

Flange

Thickness

B

Width of

Flange

C

Thickness

of Web




13/18


14/18

4-14

FIBERGLASS STANDARD STRUCTURAL SHAPESA wide variety of standard shapes and custom composite shapes can be produced

in a choice of standard resin systems. These generally cover most applications

and outperform steel, aluminum, and wood. Fiberglass grating products are imper-

vious to most industrial and environmental corrosives. They are non-conductive,

electromagnetically transparent, provide thermal insulation, and are less costlyto maintain over the life of the product. Manufactured via the pultrusion process,

these structural shapes are strong, exible, dimensionally stable, and inexpensive

to install and remove with simple hand tools.

IFR: Isophthalic polyester ame-retardant, light gray.

VFR: Vinylester ame-retardant, beige.

Standard lengths are 20 ft. (Custom lengths available upon request.)

YOUR SOURCE FOR ENGINEERING PLASTICS

SHEET ROD TUBE FILM PROFILES MACHINED PARTS

11/2 x 1/4 3 x 7/8 x 1/4 IB 4 x 2 x 1/4 Round 2 x 1/4 1/8x 48 x 96

2 x 1/4 4 x 11/8 x 1/4 IB 8 x 4 x 3/8 Square 1 x 1/8 3/16x 48 x 96

3 x 1/4 6 x 15/8 x 1/4 WF 3 x 3 x 1/4 Square 11/2 x 1/8 1/4 x 48 x 96

3 x 3/8 6 x111/16 x 3/8 WF 4 x 4 x 1/4 Square 13/4 x 1/4 3/8x 48 x 96

4 x 1/4 8 x 23/16 x 3/8 WF 6 x 6 x 1/4 Square 2 x 1/8 1/2x 48 x 96

4 x 3/8 10 x 23/4 x 1/2 WF 6 x 6 x 3/8 Square 2 x 1/4 -

6 x 1/2 - WF 8 x 8 x 3/8 Square 3 x 1/4 -

ANGLES CHANNELS BEAMS TUBES FLAT SHEETS

Alro Plastics


15/18

4-15

STRUCTURAL TOLERANCESPermissible Variations in Cross Section for W, HP, S, M, C and MC

Shapes

STRUCTUR

ALTOLERANCE

S

PermissiblevariationsinCrossSection

forW,HP,S,M,C,and

MCShapes

Wa

ndHP

Up

thru12

1/8

1/8

1/4

3/16

1/4

Ov

er12

1/8

1/8

1/4

3/16

5/16

SandM

3thru7

3/32

1/16

1/8

1/8

1/32

Ov

er7thru14

1/8

3/32

5/32

5/32

1/32

Ov

er14thru24

3/16

1/8

3/16

3/16

1/32

CandMC

Up

thru1-1/2

1/32

1/32

1/32

1/32

1/32

Ov

er1-1/2upto3

1/16

1/16

1/16

1/16

1/32

3thru7

3/32

1/16

1/8

1/8

1/32

Ov

er7thru14

1/8

3/32

1/8

5/32

1/32

Ov

er14

3/16

1/8

1/8

3/16

1/32

AApplieswhenanges

ofchannelsaretoedinorout.F

orchannels5/8"andunderindepth,thepermissibleout-of-squareis3/64in./in.ofdepth.

BToleranceisperinchofangewidthforS,M,C,andM

C

shapes.

Shape

Section

No

minalSizes

(inches)

Depth(inches)

FlangeWidth(inches)

Over

Theoretical

Under

Theoretical

Over

Theoretical

Flange

Out-of-

Square,

max.in.A

B

Under

Theoreti

cal


16/18

4-16

STRUCTUR

ALTOLERANCE

S

PermissiblevariationsinCrossSection

forAngles(LShapes)

AnglesA

Upth

ru1

...

...

1/32

1/3

2

3/128B

0.00

8

0.0

10

...

(LShapes)

Over

1thru2

...

...

3/64

3/6

4

3/128B

0.01

0

0.0

10

0.0

12

Over

2thru3

...

...

1/16

1/1

6

3/128B

0.01

2

0.0

15

0.0

15

Over

3thru4

...

...

1/8

3/3

2

3/128B

...

...

...

Over

4thru6

...

...

1/8

1/8

3/128B

...

...

...

Over

6

...

...

3/16

1/8

3/128B

...

...

...

AForunequallegangle

s,longerlegdeterminesclassications.

B3/128in./in.=1-1/2deg.

Shape

Section

NominalSizes

(inches)

Depth(inches)

FlangeWidthorLength

ofLeg(inches)

Over

Theoretical

U

nder

Theoretical

Over

Theoretical

STRUCTURAL TOLERANCESPermissible Variations in Cross Section for Angles (L Shapes)

OutofSquare

perInch,In.

Und

er

Theore

tical

PermittedVariationsOverorUnder

TheoreticalThickness(inches)

Upthru

3/1

6

Over3/16

thru3/8

Over

3/8


17/18

4-17

STRUCTURAL TOLERANCESPermissible Variations in Wide Flange Shapes

Straightness - Camber and Sweep

All, except following:

Lengths of 45 feet and under

Lengths over 45 feet

Wide Flange Shapes Permissible Variation

1/8" x number of feet of total length*

10

1/8" xnumber of feet of total

length

10

but not over 3/8"

3/8" + 1/8" xnumber of feet of total length - 45

10

When certain shapes**

with a ange width

approximately equal

to depth are specied

on order as columns:

*Shapes with a ange width less than 6 inches, variation for sweep = 1/8" xnumber of feet of total

length

5

Ends Out-of-Square

S, M, C, MC Shapes ........... 1/64" per inch of depth

S - American Standard Beams C - American Standard Channels

M - Miscellaneous Beams MC - Miscellaneous Channels

CAMBER SWEEP

HORIZONTAL

SURFACE

**Applies only to :

8 inch deep shapes 31 lbs. per foot and heavier,


12 inch deep shapes 65 lbs. per foot and heavier, and


If other shapes are specied on the order as columns,

the variation will be subject to negotiation with the

manufacturer.

Camber

Permissible Variation

1/8" xnumber of feet of total

length

5

Due to the extreme variations in exibility of standard

beams and channels, sweep tolerances are subject to

negotiations for the individual shapes involved.

Straightness

Sweep

CAMBER CAMBERSWEEP SWEEP

HORIZONTAL

SURFACE

HORIZONTAL

SURFACE


18/18

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004 Structural

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